Found 16 synonyms
Synonyms:
insane, sick, bonkers, cranky, batty, dippy, barmy, certifiable.Synonyms:
silly, fool, zany, dotty.Synonyms:
stray, haywire.Synonyms:
maniac, madman, weirdo, crackpot, nutcase, mad man, nutter, screwball, bedlam.Synonyms:
foolish, kooky, daft, nutty.Synonyms:
bizarre, screwy.Synonyms:
psychopath, mental, loco, sicko, basket case.Synonyms:
nut, fruitcake.Synonyms:
looney, loon, cuckoo, nut case.Synonyms:
senseless, nonsensical.Synonyms:
deranged.Synonyms:
whacko.